21090026 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta coolant pipe for the PTO-driven air-compressor cooling circuit on selected TAD7 engines. The formed steel line carries engine coolant between the compressor and engine cooling system and is shaped to clear the compressor, brackets and adjoining oil lines.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD750VE
• Volvo Penta TAD760VE

• Engine Family: TAD

⚙️ Key Features

• Rigid coolant line for the PTO air-compressor circuit
• Factory bends and fitting orientation
• Maintains coolant flow through the compressor head
• Designed for engine-coolant pressure and temperature
• Pipe only; seals, clamps and compressor are separate
• Engine type: Volvo Penta 7-litre industrial diesel with optional PTO air compressor

🔌 Function

Delivers or returns engine coolant through the compressor so the compressor head and valves remain within operating temperature.

⚠️ Common Signs of Failure

• Coolant leakage at the pipe or fittings
• Corrosion pitting or vibration crack
• Compressor overheating
• Coolant loss with no radiator or hose fault
• Kinked pipe restricting compressor coolant flow

🛠️ Service Notes

• Clean both flanges or spigots and check the sealing lands for pitting and corrosion; renew every O-ring, seal or gasket at the joint rather than reusing one that has taken a set
• Lubricate coolant-side O-rings with coolant or a rubber-safe lubricant — petroleum oil and grease swell and soften the rubber and end up in the coolant
• Offer the pipe up and align both ends before pulling any fastener tight, so the joints are not held together by strain from a misaligned pipe or an over-stretched hose
• Check the bore is clear of scale, sealant and debris before fitting, and inspect the pipe for internal corrosion or thinning if the old one was leaking
• Refill with the coolant type and mix specified for your engine, bleed the system through, then check the joints again with the engine hot and up to pressure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Air compressor 21101027
• Gasket kit 21013949

Other-Brand OEM Numbers

• VOE21090026

OEM Reman Alternatives

• Exchange compressor 21040143

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging